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A crested bird (Opisthocomus hoazin) of tropical South America having brown and buff plumage and a blue face. Juveniles have claws on the first and second digits of the wings.

[American Spanish hoazín, from Nahuatl uatzin, pheasant or small game bird.]


(həʊˈætsɪn) or


(Animals) a unique South American gallinaceous bird, Opisthocomus hoazin, with a brownish plumage, a very small crested head, and clawed wing digits in the young: family Opisthocomidae
[C17: from American Spanish, from Nahuatl uatzin pheasant]


(hoʊˈæt sɪn, ˈwɑt sɪn)

a slender, crested gallinaceous bird, Opisthocomus hoatzin, of the Amazon and Orinoco basins, with young having a temporary claw on the wing for grasping branches.
[1655–65; « Nahuatl huāctzīn,huāhtzīn name for several henlike birds of the Valley of Mexico]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hoatzin - crested ill-smelling South American bird whose young have claws on the first and second digits of the wingshoatzin - crested ill-smelling South American bird whose young have claws on the first and second digits of the wings
gallinacean, gallinaceous bird - heavy-bodied largely ground-feeding domestic or game birds
genus Opisthocomus, Opisthocomus - type genus of the Opisthocomidae: hoatzins
References in periodicals archive ?
Most provocatively,  Anchiornis  is presented in this artwork climbing in the manner of hoatzin chicks, the only living bird whose juveniles retain a relic of their dinosaurian past, a functional claw," said Evan Saitta in a (http://www.
Hoatzin are the only living representatives of one of the most ancient lineages of birds, with origins about 64,000,000 years ago.
One animal they were eager to see was the hoatzin, which is a "punk-rock looking bird," he said, because of its mohawk.
2004: Exposure to ecotourism reduces survival and affects stress response in hoatzin chicks (Opisthocomus hoazin).
The researchers report that world's top 50 most evolutionarily distinct bird species include widely distributed and common species such as the osprey and the ostrich, well-known oddities such as the hoatzin and the shoebill, and lesser-known, range-restricted species such as the New Caledonian owlet-nightjar and the Solomon Islands frogmouth, the researchers report.
El Guaje tiene otros nombres comunes: kao haile (Hawai), leucaena (Australia), ipil-ipil (Filipinas), lead tree (Caribe), tan-tan (Islas virgenes), jumbie bean (Bahamas), acacia bella rosa (Colombia), aroma blanca (Cuba), hediondilla (Puerto Rico), wild tamarind (Antillas Britanicas), y guaje, huaje, huaxin, guaxi, hoaxin, huassi, oaxin, guacis, uaxi, hoatzin en Mexico (Reyes, 2006).
some of these include the emerald tree boa, the silky anteater, the golden cock-of-the-rock, the golden lion tamarin, and the hoatzin.
Among other major errors, Heaton stated that archaeopteryx is just "a bird with teeth" like the modern quetzal and hoatzin.
It includes hundreds of river meanders that run through stretches of protected virgin rainforest whose fauna includes species such as the jaguar, 13 species of primate and more than 1,000 species of bird, such as parrots, kingfishers, chajas (horned screamers), hoatzin, sun bitterns, and nightjars, all in large numbers, and populations of giant otters that play around in the small pools in the forest.
Strangest bird she's ever seen: a hoatzin, while exploring the Amazon rain forest of Ecuador last year